Wow this came back, cool. I think after I had read this and entered my comment I started looking around. Here is my answer to the original question. Well not a complete answer but here are sites I looked into.
http://www.acautos.com/?src=overture...OVMTC=standard.
I would either get the 67 roadster ow the 41 willys
SOB, i had more, but they have dissapeared out of my shortcuts,
I do have a question maybe one of you may know, if you build a kit car like this, wouldn't we, or maybe just me in CA have to build to emission specs, so I would have to put everything C.A.R.B. certified? It would probably be better to find a shell that is older than 76 and build onto that as that is the year where you don't need emissions checked.